EZ-Fit NiCopp Brake Line Kit — Silverado & Sierra 1500 Extended-Cab 8′ Bed RWD (2003-2004)

Don’t trust decade-old steel tubing to stop a loaded half-ton. The AGS EZ-Fit NiCopp® kit is built specifically for 2003–2004 Chevrolet Silverado 1500 and GMC Sierra 1500 extended-cab trucks with the long 8-foot bed and rear-wheel drive. Each hard line is CNC-bent to GM factory geometry and tagged for its exact location, so installation becomes a simple routine: clip, thread, torque, bleed.

Made from nickel-copper alloy that shrugs off salt yet hand-tweaks easily for final alignment, the tubes arrive pre-flared with zinc-plated OEM-style fittings—no coil straightening, no flaring tools, no guesswork. Re-line the entire truck in one afternoon and restore the firm, confident pedal your GMT-800 was born with.

Key Features & Benefits

NiCopp® Tubing – DOT-approved, rust-proof, burst-rated to 10 000 PSI, heat-safe to 1 800 °F, yet pliable for micro tweaks.

Pre-Flared OEM Threads – Double flares with metric fittings install using everyday hand tools.

Full System Coverage – Master-cylinder, ABS block, front, rear, crossover, and over-axle sections, plus fresh clips where required.

Tagged & Diagrammed – Every line is labeled and matched to an illustrated guide, cutting install time and eliminating guesswork.

Lifetime Durability – Built to resist salt spray, towing vibration, and frame flex—engineered to outlast the truck itself.

Upgrade your 2003-2004 Silverado or Sierra 1500 with EZ-Fit NiCopp and drive away knowing your brake lines are as tough and reliable as the truck you count on every day.